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Central angle - Wikipedia


A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B.

Central angle of a circle - Math Open Reference


Given two points A and B, lines from them to center of the circle form the central angle ∠AOB. The central angle is the smaller of the two at the center. It does not  ...

Central angle | Define Central angle at Dictionary.com


Central angle definition, an angle formed at the center of a circle by two radii. See more.

What is a Central Angle? - Definition, Theorem & Formula - Video ...


In this lesson, you will learn about the definition and properties of a central angle. You will also discover what the Central Angle Theorem is and...

Central Angles - Varsity Tutors


In rotation, the angle through which the plane figure is rotated is called the ... A central angle is an angle with its vertex at the center of a circle, with its sides ...

Central Angles, Arc Length, and Sector Area - Nelson Education


Central Angles, Arc Length, and Sector Area. An angle whose vertex is the centre of a circle and whose sides pass through a pair of points on the circle is called ...

Central Angle of a Circle. Illustrated explanation with interactive ...


Formula of the Central Angle of a Circle explained with diagram and interactive applet.

IXL - Central angles (Geometry practice)


Fun math practice! Improve your skills with free problems in 'Central angles' and thousands of other practice lessons.

Central Angle and Arc Relationship Lesson by MATHguide


Central Angle and Arc Relationship: Learn about central angles and arcs within a circle.

What is a Sector and Central Angle? | Virtual Nerd


Note: Just about everything in math has a name! Did you know that a fraction of the area of a circle is known as a sector? This tutorial introduces you to the term ...

More Info

Subtended angle from arc length | Arc length (degrees) | Circles ...


Watch Sal solve an example where he finds the central angle given arc length.

Central Angle -- from Wolfram MathWorld


A central angle in a circle determines an arc arcAC . CentralInscribedAngle. For an inscribed angle ∠ABC and central angle ∠AOC with the same endpoints, ...

Central angles - Basic mathematics


To learn about central angles is the goal of this lesson.